Self-closing bottle cap



FIG. 1 is a perspective view of a self-closing bottle cap showing my newdesign;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof;

FIG. 6 is a side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom view thereof.

The ornamental design for a self-closing bottle cap, as shown anddescribed.